A week ahead of a long awaited Senate hearing on bump stocks, the district attorney from Las Vegas issued a powerful call to ban the firearm accessory, which enabled a gunman to kill 58 people in just minutes at an Oct. 1 concert along the city’s famed Strip.

The renewed spotlight on the issue provides some much needed momentum for California Sen. Dianne Feinstein’s legislation to ban the device, which has languished in the Senate as Washington’s attention drifted on to other matters.

Two events are now reigniting the debate over whether Congress ought to act on bump stocks. The Senate Judiciary Committee is slated to hold a hearing Dec. 6 on the regulation of firearm accessories like bump stocks as well as issues with the federal background checks database that gun dealers use to determine whether someone is allowed to purchase a gun. A second mass shooting this fall, at a church in Sunderland Springs, Texas, highlighted gaps in that system.